Dera Bruce,
If you are getting more chatter than usual check the angle of your blade
holder. If the angle is above 5 I tend to get more chatter than usual. I set
mine to between 0 and 5.
As for the air bubbles, I don't know other than the way you are picking the
sections up.
Tammaryn
National Institute of Medical Research,
Department of Neurobiology,
The Ridgeway,
Mill Hill,
London,
England.
FAX 0181 913 8523
TEl 0181 959 3666 ext 2391